Research has indicated that there is a curvilinear relationship between the number of drinks a person has per day and their likelihood of developing heart disease. Calculating a regular correlation coefficient on these data would likely result in
A) an artificially low value.
B) a value close to +1.00.
C) a value close to -1.00.
D) a value larger than 1.00.

Question

Quizplus · Accepted Answer

A curvilinear relationship does not follow a straight line, so a regular correlation coefficient (which measures linear relationships) would not accurately capture the strength of the relationship, likely resulting in an artificially low value.

Research Has Indicated That There Is a Curvilinear Relationship Between